| 摘要 |
<p>An economizer device for detecting the passage of a liquid is disclosed, comprising an electrically non-conductive main body and a passage channel for said liquid. The passage channel is also provided with a narrowing portion. The main body includes also a pair of holes made on opposite sides relative to said passage channel. The device comprises also a pair of conductive elements arranged on opposite sides relative to said narrowing portion, and each conductive element has a passage for the liquid. The device is positioned with a vertical central axis and perpendicular to ground, while the holes made on body are arranged at different height relative to the vertical axis; moreover two electrodes are inserted in said holes, so that the electrodes are fully buried in the device main body. Finally said conductive elements are provided with a conical portion converging to a cylindrical circular portion.</p> |
